20021201
u To store an x = equation
Example: To store x = 3y in line x4
(1) On the Graph Editor window, tap [Type] and then [x=Type] to specify an
x = equation.
(2) Tap the box to the right of line number “x4”, and then input the equation:
3y.
(3) Press E to store the equation.
u To store an inequality
Example: To store the inequality y > x
2
– 2x – 6 in line y5
(1) On the Graph Editor window, tap [Type] and then [y>Type] to specify an inequality
expression.
(2) Tap the box to the right of line number “y5”, and then input the expression:
x{2-2x-6.
(3) Press E to store the expression.
Tip
• An error message appears if you enter an expression that does not fit the function type. Either
input the new function into a different line or delete the current function and then change the type
before re-inputting the function.
•You can change the equality/inequality sign of an x-type (x =, x>, x<, xt, xs) or y-type
(y =, y>, y<, yt, ys) expression after you input it. Simply tap the current equality/inequality sign.
3-3-4
Storing Functions
On the Type dialog box that appears, select the sign you want and then tap [OK].
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